/**
* Drops any allocated memory.
*/
static void
sp_feImage_release(SPObject *object)
{
SPFeImage *feImage = SP_FEIMAGE(object);
feImage->_modified_connection.disconnect();
if (feImage->SVGElemRef) delete feImage->SVGElemRef;
if (((SPObjectClass *) feImage_parent_class)->release)
((SPObjectClass *) feImage_parent_class)->release(object);
}
/**
* Sets a specific value in the SPFeImage.
*/
static void
sp_feImage_set(SPObject *object, unsigned int key, gchar const *value)
{
SPFeImage *feImage = SP_FEIMAGE(object);
(void)feImage;
Inkscape::URI* SVGElem_uri;
switch(key) {
/*DEAL WITH SETTING ATTRIBUTES HERE*/
case SP_ATTR_XLINK_HREF:
if (feImage->href) g_free(feImage->href);
feImage->href = (value) ? g_strdup (value) : NULL;
if (!feImage->href) return;
try{
SVGElem_uri = new Inkscape::URI(feImage->href);
feImage->SVGElemRef = new Inkscape::URIReference(feImage->document);
feImage->from_element = true;
feImage->SVGElemRef->attach(*SVGElem_uri);
feImage->SVGElem = SP_ITEM(feImage->SVGElemRef->getObject());
g_free(SVGElem_uri);
feImage->_modified_connection = ((SPObject*) feImage->SVGElem)->connectModified(sigc::bind(sigc::ptr_fun(&sp_feImage_elem_modified), object));
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
catch(const Inkscape::UnsupportedURIException & e)
{
feImage->from_element = false;
g_warning("caught Inkscape::UnsupportedURIException in sp_feImage_set");
break;
}
case SP_ATTR_X:
feImage->x.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_Y:
feImage->y.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_WIDTH:
feImage->width.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_HEIGHT:
feImage->height.readOrUnset(value);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
default:
if (((SPObjectClass *) feImage_parent_class)->set)
((SPObjectClass *) feImage_parent_class)->set(object, key, value);
break;
}
}
static void sp_feImage_href_modified(SPObject* /*old_elem*/, SPObject* new_elem, SPObject* obj)
{
SPFeImage *feImage = SP_FEIMAGE(obj);
feImage->_image_modified_connection.disconnect();
if (new_elem) {
feImage->SVGElem = SP_ITEM(new_elem);
feImage->_image_modified_connection = ((SPObject*) feImage->SVGElem)->connectModified(sigc::bind(sigc::ptr_fun(&sp_feImage_elem_modified), obj));
} else {
feImage->SVGElem = 0;
}
obj->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
/**
* Reads the Inkscape::XML::Node, and initializes SPFeImage variables. For this to get called,
* our name must be associated with a repr via "sp_object_type_register". Best done through
* sp-object-repr.cpp's repr_name_entries array.
*/
static void sp_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
// Save document reference so we can load images with relative paths.
SPFeImage *feImage = SP_FEIMAGE(object);
feImage->document = document;
if (((SPObjectClass *) feImage_parent_class)->build) {
((SPObjectClass *) feImage_parent_class)->build(object, document, repr);
}
/*LOAD ATTRIBUTES FROM REPR HERE*/
object->readAttr( "preserveAspectRatio" );
object->readAttr( "xlink:href" );
}
static void sp_feImage_build_renderer(SPFilterPrimitive *primitive, Inkscape::Filters::Filter *filter) {
g_assert(primitive != NULL);
g_assert(filter != NULL);
SPFeImage *sp_image = SP_FEIMAGE(primitive);
int primitive_n = filter->add_primitive(Inkscape::Filters::NR_FILTER_IMAGE);
Inkscape::Filters::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n);
Inkscape::Filters::FilterImage *nr_image = dynamic_cast<Inkscape::Filters::FilterImage*>(nr_primitive);
g_assert(nr_image != NULL);
sp_filter_primitive_renderer_common(primitive, nr_primitive);
nr_image->from_element = sp_image->from_element;
nr_image->SVGElem = sp_image->SVGElem;
nr_image->set_region(sp_image->x, sp_image->y, sp_image->width, sp_image->height);
nr_image->set_href(sp_image->href);
nr_image->set_document(sp_image->document);
}
/**
* Reads the Inkscape::XML::Node, and initializes SPFeImage variables. For this to get called,
* our name must be associated with a repr via "sp_object_type_register". Best done through
* sp-object-repr.cpp's repr_name_entries array.
*/
static void
sp_feImage_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
// Save document reference so we can load images with relative paths.
SPFeImage *feImage = SP_FEIMAGE(object);
feImage->document = document;
if (((SPObjectClass *) feImage_parent_class)->build) {
((SPObjectClass *) feImage_parent_class)->build(object, document, repr);
}
/*LOAD ATTRIBUTES FROM REPR HERE*/
sp_object_read_attr(object, "x");
sp_object_read_attr(object, "y");
sp_object_read_attr(object, "width");
sp_object_read_attr(object, "height");
sp_object_read_attr(object, "xlink:href");
}
/**
* Sets a specific value in the SPFeImage.
*/
static void sp_feImage_set(SPObject *object, unsigned int key, gchar const *value)
{
SPFeImage *feImage = SP_FEIMAGE(object);
(void)feImage;
switch(key) {
/*DEAL WITH SETTING ATTRIBUTES HERE*/
case SP_ATTR_XLINK_HREF:
if (feImage->href) {
g_free(feImage->href);
}
feImage->href = (value) ? g_strdup (value) : NULL;
if (!feImage->href) return;
delete feImage->SVGElemRef;
feImage->SVGElemRef = 0;
feImage->SVGElem = 0;
feImage->_image_modified_connection.disconnect();
feImage->_href_modified_connection.disconnect();
try{
Inkscape::URI SVGElem_uri(feImage->href);
feImage->SVGElemRef = new Inkscape::URIReference(feImage->document);
feImage->SVGElemRef->attach(SVGElem_uri);
feImage->from_element = true;
feImage->_href_modified_connection = feImage->SVGElemRef->changedSignal().connect(sigc::bind(sigc::ptr_fun(&sp_feImage_href_modified), object));
if (SPObject *elemref = feImage->SVGElemRef->getObject()) {
feImage->SVGElem = SP_ITEM(elemref);
feImage->_image_modified_connection = ((SPObject*) feImage->SVGElem)->connectModified(sigc::bind(sigc::ptr_fun(&sp_feImage_elem_modified), object));
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
} else {
g_warning("SVG element URI was not found in the document while loading feImage");
}
}
// catches either MalformedURIException or UnsupportedURIException
catch(const Inkscape::BadURIException & e)
{
feImage->from_element = false;
/* This occurs when using external image as the source */
//g_warning("caught Inkscape::BadURIException in sp_feImage_set");
break;
}
break;
case SP_ATTR_PRESERVEASPECTRATIO:
/* Copied from sp-image.cpp */
/* Do setup before, so we can use break to escape */
feImage->aspect_align = SP_ASPECT_XMID_YMID; // Default
feImage->aspect_clip = SP_ASPECT_MEET; // Default
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG);
if (value) {
int len;
gchar c[256];
const gchar *p, *e;
unsigned int align, clip;
p = value;
while (*p && *p == 32) p += 1;
if (!*p) break;
e = p;
while (*e && *e != 32) e += 1;
len = e - p;
if (len > 8) break;
memcpy (c, value, len);
c[len] = 0;
/* Now the actual part */
if (!strcmp (c, "none")) {
align = SP_ASPECT_NONE;
} else if (!strcmp (c, "xMinYMin")) {
align = SP_ASPECT_XMIN_YMIN;
} else if (!strcmp (c, "xMidYMin")) {
align = SP_ASPECT_XMID_YMIN;
} else if (!strcmp (c, "xMaxYMin")) {
align = SP_ASPECT_XMAX_YMIN;
} else if (!strcmp (c, "xMinYMid")) {
align = SP_ASPECT_XMIN_YMID;
} else if (!strcmp (c, "xMidYMid")) {
align = SP_ASPECT_XMID_YMID;
} else if (!strcmp (c, "xMaxYMid")) {
align = SP_ASPECT_XMAX_YMID;
} else if (!strcmp (c, "xMinYMax")) {
align = SP_ASPECT_XMIN_YMAX;
} else if (!strcmp (c, "xMidYMax")) {
align = SP_ASPECT_XMID_YMAX;
} else if (!strcmp (c, "xMaxYMax")) {
align = SP_ASPECT_XMAX_YMAX;
} else {
g_warning("Illegal preserveAspectRatio: %s", c);
break;
}
clip = SP_ASPECT_MEET;
while (*e && *e == 32) e += 1;
if (*e) {
if (!strcmp (e, "meet")) {
clip = SP_ASPECT_MEET;
} else if (!strcmp (e, "slice")) {
clip = SP_ASPECT_SLICE;
} else {
break;
}
}
feImage->aspect_align = align;
feImage->aspect_clip = clip;
}
break;
default:
if (((SPObjectClass *) feImage_parent_class)->set)
((SPObjectClass *) feImage_parent_class)->set(object, key, value);
break;
}
}
